Tree-planer for cutting or working out resin-passages in trees



March 21, 1933. A 1,901,946

TREE PLANER FOR CUTTING OR WORKING OUT RESIN PASSAGES IN TREES Filed Nov, 22, 1930 W LTER BARK INVENTOFE;

y Attorney Patented Mar. 21, 1933 NITE -stares PATENT OFFICE WALTER BARK, F ANNABURG, GERMANY TREE-PLANER FOR CUTTING OR- WORKIN G OUT RESIN-PASSAGES IN TREES Application filed November 22, 1930, Serial No. 497,518, and in Austria November 23, 1929.

This invention relates to improvements in are inclined with respect to each other and tree-planers for cutting or working out thus form a rearwardly tapering profile in resin-passages in trees and more particularly order to provide for a clean cut of the grooves relates to that kind of tree-planters in which a and passages worked out by the plane-cutter U-shaped plane-iron with adjustable cutting and prevent any jamming during the operdepth is adjustably mounted with respect to ation. As shown in Fig. 3, a screw 7 is th i mounted in a longitudinal slot 6 of the plane- This invention has for its object to avoid iron 5 and passes through a slot 8 of a subthe drawbacks of the known tools of this kind, stantially universally adjustable carrier 9 to 9 namely small productiveness, non-uniform which is pivotally secured'a tongue 11 by sap-faces and troublesome handling, difficult means of a bolt 10 in such a manner, that it working and troublesome maintenance. can be turned outward, the carrier being pro- The object of the present invention is atvided with a stop 11 to lock the rear end of tained in that the plane-iron encloses a unithe tongue in working position. On loosen- 5 versally adjustable tongue, the thickness of ing the screw 7, in view of the right angle the chips depending on the adjustment of arrangement of both slots 6 and 8, the tongue said tongue and a uniform sap-face being can be set at any desired angle with respect formed with the result of the best producto the cutting edge of the plane-iron accordtiveness. At each lateral end of its cutting in to the desired cutting-depth and thus the 20 edge, the peeling tool arranged on the same thickness of the chips can be controlled. The stem is provided with a curved part of a cutting edge of the plane-iron is accessible small radius corresponding to the cr0ss-secand can be sharpened if the tongue 11 is tional area of the grooves, passages or the turned outward into the position shown in like, in order to retouch or subsequently im- Fig. 3.

25 prove the grooves, passages or the like worked A U-shaped bracket 13 is rotatably mountout or cut by means of the plane-iron. ed on the screw-bolt 4 of the shaft 3 and The tool constructed according to the presslidable in a longitudinal slot 12, in order to ent invention serves for working out resinset the cutting edge of the plane-iron in most passages in the tree by drawing it downwards favorable working position. The outer ends or by moving or pushing upward. In order of said bracket 13 can be adjusted at a con- 30 to perform the work last mentioned, the hanvenient distance from the screw-bolt 4 by dle of the tool is provided with a rest for the adjustment in the longitudinal slot 12, so that hand, which is adapted to be set and fixed at the plane-iron 5 rests on the bracket 13 at a any convenient angle and preferably is U- Convenient angle with respect to the shaft 3, shaped, as well as enclosing the handle with the bracket 13 resting on the said stem. its tool-parts. A peelin tool 15 is arranged at the rear- One mode of carrying out the present inwardly turned top end 14 of the shaft 3, the vention is illustrated by way of example on cutting edge being longer than corresponds the accompanying sheet of drawing in to the width of the stem 14. Each side of the which said cutting edge is in the shape of a curved Figs. 1 and 2 illustrate atree-planer in side part 16 of a small radius. These curved view and in plan view respectively. cutting edges serve for working out or im- Fig. 3 is a part-sectional view of the planeproving the resin-passages cut with the iron with outward turned tongue. plane iron 5. In the illustrated construc- A shaft 3 is secured to a handle 1 of any tion, the legs 17 of the peeling tool 15 are convenient material which, in known manner, fixed to the stem 14 by means of screws 18 is provided with a knob 2 of lead or the like. and 19, which pass through longitudinal A U-shaped plane-iron 5 is rotatably mountslots 20 and 21, disposed at an angle with ed on the shaft 3 by means of a screw-bolt 4. respect to each other. As shown in F ig. 2, the arms of the plane-iron When the screws 18 and 19 are loosened it is possible to set the peeling tool 15 in any convenient position and secure it in this position by tightening the screws 18 and 19.

In order to positively guide the tool during the cutting of the resin-passages, particularly when pulling upward the tool, the latter is provided with a bolt 23, which passes through a hole 22 of the shaft 3 and is turned off at a right angle as shown at 24 and provided with a pair of rollers or wheels 25 or the like, which are adapted to rock round the axis of the bent part 24. Springs 26 are arranged on the bolt 23 at both sides of the shaft 3 and provide for a resilient location of said bolt. In view of the fact that the rollers or wheels 25 run on the outer face of the bark or sap-face,thetool is securely guided and any roughness of the running face is compensated by the movability of the wheels or rollers 25. Thus this guiding device can readily move in any direction in view of the fact that the bolt 23 rotates in the bore 22 and can resiliently move in its axial direction.

When working out resin-passages from the top downward, the tool is pulled downward in the direction of the arrow (1 by holding it by the grip 1. If the tool is pushed upward for working out resin-passages, the shaft 3 is provided with a rest for the hand, which comprises a U-shaped sheet metal member 27, fixed to the bolt 4 at any convenient position, which passes through a longitudinal slot 28 of said member 27. The latter may be provided with an extension 29 which serves as guide for the tool by resting on or following up the sap-face during operation.

I claim 1. Tree-planer for working out and cutting resin-passages in trees, comprising a shaft, a U-shaped plane-iron carried by said shaft, a universally adjustable tongue embraced by the said plane iron and disposed in the cutting direction and in back of the cutting edge of the plane iron, the cutting depth depending on the adjustment of the said tongue.

2. Tree-planer as claimed in claim 1 comprising a resilient and universally adjustable pair of rotary members mounted on the shaft and disposed in the direction of movement of the tool in front of the plane-iron for guiding the tool.

3. Tree-planer as claimed in claim 1 comprising a rest provided with an extension which faces the sap-face of the tree and rests on the latter during operation.

4. A tree planer as claimed in claim 1, comprising a plane iron provided with two arms, a universally adjustable carrier attached to said arms, said tongue being movable on and supported by said carrier, a stop on said carrier to lock the rear end of the said tongue in working position.

5. A tree planer as claimed in claim 1,

comprising a guide in front of and in back of said shaft, the guide in back of the plane iron being provided with an extension piece fol lowing up the sapwood.

6. A tree planer as claimed in claim 1, comprising a guide in front of the said shaft and an adjustable and resilient guiding roller on each side of the said guide.

In testimony whereof I afiix my signature.

WALTER BARK. 

